What is Odor Monitoring?
Odors are very distinct air contaminants and are usually unpleasant. The factors playing a role in the determination of odor annoyance are odor concentration/intensity, frequency, appreciation, duration, synergy, and location.
Conventionally, the reference odor testing is conducted using dynamic olfactometry (EN13725) involving sampling of air and sensing by trained panelists. Alternatively, field olfactometers provide the same basic function of a laboratory olfactometer but are designed to be used by a single panel to measure ambient odors.
The traditional approach is a spot sampling takes time to generate results, during which compounds may be lost due to reaction and adsorption. Electronic nose is the latest complementary approach to offer online measurement of odor emissions.